<script type="text/javascript" language="javascript">

// 	function checkAnswer(url) {
// 		document.getElementById("answercheckblock").innerHTML = '';
// 		var chosenanswer = getCheckedRadio("choices");
		
// 		if(chosenanswer.length == '') {
// 		   alert('Please select the answer');
// 		   return;
// 		}  	
// 		var processedurl = '/lwf' + url + '&useranswer=' + chosenanswer;
		
// 	    retrieveURL(processedurl, 'answercheckblock');
// 	  }	  

   function processEnter(e, url) {
       if(e && e.keyCode == 13) {
    	   checkAnswer(url);
       }
    }

</script>